cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A129449 Expansion of psi(-x) * psi(-x^3) in powers of x where psi() is a Ramanujan theta function.

Table of values

n a(n)
0 1
1 -1
2 0
3 -2
4 1
5 0
6 2
7 0
8 0
9 -2
10 2
11 0
12 1
13 -1
14 0
15 -2
16 0
17 0
18 2
19 -2
20 0
21 -2
22 0
23 0
24 3
25 0
26 0
27 0
28 2
29 0
30 2
31 -2
32 0
33 -2
34 0
35 0
36 2
37 -1
38 0
39 -2
40 1
41 0
42 0
43 0
44 0
45 -4
46 2
47 0
48 2
49 0
50 0
51 -2
52 0
53 0
54 2
55 -2
56 0
57 0
58 2
59 0
60 1
61 0
62 0
63 -2
64 2
65 0
66 4
67 0
68 0
69 -2
70 0
71 0
72 0
73 -3
74 0
75 -2
76 0
77 0
78 2
79 0
80 0
81 -2
82 0
83 0
84 3
85 -2
86 0
87 -2
88 0
89 0
90 2
91 -2
92 0
93 0
94 2
95 0
96 2
97 0
98 0
99 -2
100 2
101 0
102 0
103 0
104 0

List of values

[1, -1, 0, -2, 1, 0, 2, 0, 0, -2, 2, 0, 1, -1, 0, -2, 0, 0, 2, -2, 0, -2, 0, 0, 3, 0, 0, 0, 2, 0, 2, -2, 0, -2, 0, 0, 2, -1, 0, -2, 1, 0, 0, 0, 0, -4, 2, 0, 2, 0, 0, -2, 0, 0, 2, -2, 0, 0, 2, 0, 1, 0, 0, -2, 2, 0, 4, 0, 0, -2, 0, 0, 0, -3, 0, -2, 0, 0, 2, 0, 0, -2, 0, 0, 3, -2, 0, -2, 0, 0, 2, -2, 0, 0, 2, 0, 2, 0, 0, -2, 2, 0, 0, 0, 0]